Fatal error: Uncaught Error: Class "OCP\Files\StorageNotAvailableException" not found in /var/www/html/nextcloud/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php:14 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php on line 14